<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>ludel</title>
  </head>
  <body bgcolor="#FFFFFF">
    <center>Scilab Function</center>
    <div align="right">Last update : April 1993</div>
    <p>
      <b>ludel</b> -  utility function used with lufact</p>
    <h3>
      <font color="blue">Calling Sequence</font>
    </h3>
    <dl>
      <dd>
        <tt>ludel(hand)  </tt>
      </dd>
    </dl>
    <h3>
      <font color="blue">Parameters</font>
    </h3>
    <ul>
      <li>
        <tt>
          <b>hand</b>
        </tt>: handle to sparse lu factors (output of lufact)</li>
    </ul>
    <h3>
      <font color="blue">Description</font>
    </h3>
    <p>
    This function is used in conjunction with <tt>
        <b>lufact</b>
      </tt>. It clears 
    the internal memory space used to store the result of <tt>
        <b>lufact</b>
      </tt>.</p>
    <p>
    The sequence of commands <tt>
        <b>[p,r]=lufact(A);x=lusolve(p,b);ludel(p);</b>
      </tt>
    solves the sparse linear system  <tt>
        <b>A*x = b</b>
      </tt> and clears <tt>
        <b>p</b>
      </tt>.</p>
    <h3>
      <font color="blue">See Also</font>
    </h3>
    <p>
      <a href="../elementary/sparse.htm">
        <tt>
          <b>sparse</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="lufact.htm">
        <tt>
          <b>lufact</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="luget.htm">
        <tt>
          <b>luget</b>
        </tt>
      </a>,&nbsp;&nbsp;</p>
  </body>
</html>
